L92 Cylinder Head Assembly
Aluminum performance head • Fits any LS family engine with 4.000" bore or larger • 2.165" solid stem intake, and 1.590" solid stem exhaust valves • .510" max valve lift • As-cast L92 style intake ports • D-shaped exhaust ports • As-cast combustion chambers Head 12615355 is assembled with the following components: 12590771 Intake Valves 10166344 Valve Spring Retainers 12582719 Exhaust Valves 12482063 Intake Valve Stem Seals 12589774 Valve Springs 12482062 Exhaust Valve Stem Seals 10166345 Valve Locks
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